Nyob rau hauv lub ntiaj teb drilling,Laum dab tshosthiabHeavy Weight Drill Pipe (HWDP) yog ob qho tib si hnyav siv nyob rau hauv qab ntawm txoj hlua xyaum, tab sis lawv ua hauj lwm txawv engineering lub hom phiaj.
Xav tau qhov hnyav yam tsis muaj qhov rigidity?Tshawb nrhiav peb cov khoom muag ntawm siab -strength Spiral HWDP.
Dab tsi yog Drill Collar?
A Laum dab tshosyog qhov hnyav tshaj plaws thiab nruj tshaj plaws ntawm txoj hlua tho. Nws yog tuab -walled, hnyav steel lub tog raj kheej nyob rau hauv qab ntawm lub rooj sib txoos, ncaj qha saum lub ntsis.
Lub luag haujlwm tseem ceeb:Los muabQhov hnyav ntawm ntsis (WOB). Nws qhov hnyav hnyav siv lub ntiajteb txawj nqus los thawb me ntsis rau hauv pob zeb. Nws tseem khaws cov hlua tho qhov seem hauvnrujtxhawm rau tiv thaiv cov yeeb nkab nyias nyias ntawm buckling.
Tsim:Nws feem ntau yog ib qho, khoom ntawm cov hlau alloy nrog lub qhov me me dhuav los ntawm qhov chaw. Nws muaj qhov sib txawv sab nraud (OD) los ntawm qhov kawg mus rau qhov kawg.
Hom:Slick (nqus nto) los yog Kauv (grooved los tiv thaiv "differential sticking" nyob rau hauv lub wellbore).
Heavy Weight Drill Pipe (HWDP) yog dab tsi?
HWDPyog lub cuab yeej hloov pauv. Nws yog tuab- cov yeeb nkab phab ntsa uas nyob nruab nrab ntawm cov yeeb nkab uas hloov tau yooj yim thiab cov hlua khauj khaum.
Lub luag haujlwm tseem ceeb:Ua raws li ib tugtsis/transition zone. Nws tiv thaiv cov yeeb nkab uas hloov tau yooj yim los ntawm snapping ntawm qhov chaw uas nws ua tau raws li qhov sib tw txhav. Hauvdirectional los yog kab rov tav drilling, HWDP feem ntau yog siv los hloov cov dab tshos los muab qhov hnyav vim nws hloov tau yooj yim mus ncig ntawm qhov nkhaus.
Tsim:Nws zoo li tus qauv laum yeeb nkab tab sis nrog ntau cov phab ntsa tuab. Nws qhov txawv tshaj plaws feature yog aCenter Wear Pad(ib tug tsa "bulge" nyob rau hauv nruab nrab ntawm cov yeeb nkab) uas tiv thaiv cov yeeb nkab lub cev ntawm abrasion thiab ntxiv txhav.
Hom:Integral (ib thooj) los yog Welded.
Qhov txawv: Drill Collar vs. HWDP
| Feature | Laum dab tshos | Heavy Weight Drill Pipe (HWDP) |
| Txoj hauj lwm | Heev hauv qab ntawm txoj hlua. | Nruab nrab ntawm Drill Pipe thiab dab tshos. |
| Qhov hnyav | hnyav tshaj(Max WOB). | Nruab Nrab (Moderate WOB). |
| Yooj yim | Rigid / Nyuaj(Tsis muaj dabtsis). | Yooj yim(Yuav tuav tau qee qhov khoov). |
| Visual Feature | Uniform cylinder (Smooth los yog kauv). | Muaj ibCenter Wear Pad(Rau nruab nrab). |
| Kev sib txuas | Integral threads (Tib OD li lub cev). | Cov cuab yeej siv ntev (zoo li cov yeeb nkab txheem). |
| Kev pheej hmoo | Siab (High contact area). | Tsawg (Center ncoo txo kev sib cuag). |
| Hom Lub Npe Zoo | Vertical Wells. | Directional & Kab rov tav Wells. |
| Kev Nyuaj Siab | Muab lub zog downward. | Txo kev qaug zog ntawm qhov chaw hloov pauv. |
API 5DP Yeeb Nkab Hoobkas
API 5DP Pipe Test Equipment
API 5DP Pipe daim ntawv pov thawj
FAQ
Qhov hnyav npaum li cas yog laum dab tshos?
Qhov ntev ntawm qhov hnyav ntawm qhov laum dab tshos feem ntau yog li ntawm 150 txog 360 kg / m, nyob ntawm seb lawv cov kab uas hla, phab ntsa thickness, thiab cov khoom siv. Raws li cov ntaub ntawv ib txwm, tus qauv laum dab tshos hnyav kwv yees li 150-180 kg / m hauv ib lub 'meter', thaum loj dua - loj los yog siab - cov khoom siv ntom ntom (xws li cov khoom ua los ntawm 4330V alloy steel) tuaj yeem ncav cuag 300-360 kg / m.
Lub hom phiaj ntawm qhov hnyav laum yeeb nkab yog dab tsi?
Lub luag haujlwm tseem ceeb ntawm qhov hnyav- hnyav laum yeeb nkab (HWDP) yog txhawm rau txo qhov nrawm nrawm- ntu hloov pauv ntawm txoj hlua laum nruab nrab ntawm lub laum dab tshos thiab cov kav dej tus qauv, yog li txo qis kev ntxhov siab thiab tiv thaiv kev qaug zog rau lub laum yeeb nkab. Nruab nruab nrab ntawm lub laum yeeb nkab thiab laum dab tshos raws li ib qho kev hloov pauv, nws muaj txiaj ntsig zoo faib cov kev ntxhov siab thiab txuas ntxiv lub neej kev pab cuam ntawm kev sib dhos drilling. Tsis tas li ntawd, nws qhov hnyav ntawm chav tsev yog nruab nrab ntawm cov yeeb nkab laum thiab cov dab laum, tso cai rau nws los hloov ib feem ntawm cov hlua tho, txo cov nuv ntses, thiab hauv cov qhov dej taw qhia, qis dua torque thiab luag, yog li txhim kho qhov zoo ntawm kev tswj xyuas.
